[M] Change in coreboot[master]: rex: add variant gpio tables for variant creation

[YH Lin (Code Review)]

YH Lin has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/74257 )

Change subject: rex: add variant gpio tables for variant creation
......................................................................

rex: add variant gpio tables for variant creation

BUG=b:276818954
TEST=None
BRANCH=None

Signed-off-by: YH Lin 
Change-Id: Iebc098f8d480ac3e1835b00861fd844d97f281a8
---
M src/mainboard/google/rex/variants/baseboard/include/baseboard/variants.h
M src/mainboard/google/rex/variants/baseboard/rex/Makefile.inc
A src/mainboard/google/rex/variants/baseboard/rex/gpio.c
3 files changed, 56 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/57/74257/1

diff --git a/src/mainboard/google/rex/variants/baseboard/include/baseboard/variants.h b/src/mainboard/google/rex/variants/baseboard/include/baseboard/variants.h
index 6fd64c9..0add9cd 100644
--- a/src/mainboard/google/rex/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/google/rex/variants/baseboard/include/baseboard/variants.h
@@ -14,6 +14,7 @@

const struct pad_config *variant_gpio_table(size_t *num);
 const struct pad_config *variant_early_gpio_table(size_t *num);
+const struct pad_config *variant_gpio_override_table(size_t *num);
 const struct pad_config *variant_romstage_gpio_table(size_t *num);

const struct mb_cfg *variant_memory_params(void);
diff --git a/src/mainboard/google/rex/variants/baseboard/rex/Makefile.inc b/src/mainboard/google/rex/variants/baseboard/rex/Makefile.inc
index fd45b94..b0e8f9e 100644
--- a/src/mainboard/google/rex/variants/baseboard/rex/Makefile.inc
+++ b/src/mainboard/google/rex/variants/baseboard/rex/Makefile.inc
@@ -1 +1,4 @@
+bootblock-y += gpio.c
+
 romstage-y += memory.c
+romstage-y += gpio.c
diff --git a/src/mainboard/google/rex/variants/baseboard/rex/gpio.c b/src/mainboard/google/rex/variants/baseboard/rex/gpio.c
new file mode 100644
index 0000000..e613256
--- /dev/null
+++ b/src/mainboard/google/rex/variants/baseboard/rex/gpio.c
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <baseboard/gpio.h>
+#include <baseboard/variants.h>
+#include <types.h>
+#include <soc/gpio.h>
+#include <vendorcode/google/chromeos/chromeos.h>
+
+const struct pad_config *__weak variant_gpio_table(size_t *num)
+{
+	*num = 0;
+	return NULL;
+}
+
+const struct pad_config *__weak variant_gpio_override_table(size_t *num)
+{
+	*num = 0;
+	return NULL;
+}
+
+const struct pad_config *__weak variant_early_gpio_table(size_t *num)
+{
+	*num = 0;
+	return NULL;
+}
+
+static const struct cros_gpio cros_gpios[] = {
+	CROS_GPIO_REC_AL(CROS_GPIO_VIRTUAL, CROS_GPIO_DEVICE_NAME),
+	CROS_GPIO_WP_AH(GPIO_PCH_WP, CROS_GPIO_DEVICE_NAME),
+};
+
+DECLARE_WEAK_CROS_GPIOS(cros_gpios);
+
+const struct pad_config *__weak variant_romstage_gpio_table(size_t *num)
+{
+	*num = 0;
+	return NULL;
+}